1995 TOYOTA SUPRA bulb

TROUBLESHOOTING
The table below will be useful for you in troubleshooting these electrical problems. The most likely causes
of the malfunction are shown in the order of their probability. Inspect each part in the order shown, and
replace the part when it is found to be faulty.
 Trouble Parts name (See page)
 
 
 
ºHazardº and ºTurnº do not light up
 
 
 
1. Hazard Warning Switch (BE±22)
2. Turn Signal Flasher (BE±22)
3. Wire Harness
 
 
 
The flashing frequency is abnormal
 
 
 
1. Bulb
2. Turn Signal Flasher (BE±22)
3. Wire Harness
 Hazard warning light does not light up
(Turn is normal) 1. HAZ±HORN Fuse (BE±5)
2. Wire Harness
 
 Hazard warning light does not light up in one direction
 
 1. Hazard Warning Switch (BE±22)
2. Wire Harness
 
 
 
 
*1 Turn signal does not light up
 
 
 
 
1. Ignition Switch (BE±8)
2. TURN Fuse (BE±6)
3. Turn Signal Switch (BE±21)
4. Wire Harness
 
 
 
*2 Turn signal does not light up
 
 
 
1. TURN Fuse (BE±6)
2. Turn Signal Switch (BE±21)
3. Wire Harness
 
 Turn signal does not light up in one direction
 
 
1. Turn Signal Switch (BE±21)
2. Wire Harness
 
 Only one bulb does not light up
 
 
1. Bulb
2. Wire Harness
*1: Combination Meter, Wiper and Washer do not operate.
*
2: Combination Meter, Wiper and Washer are normal.
TURN SIGNAL SWITCH INSPECTION
INSPECT SWITCH CONTINUITY 
 Switch position
 
 Tester connection to
terminal number
 
 Specified condition
 
 Left turn
 
 A1 ± A5
 
 Continuity 
 Neutral
 
 ±
 
 No continuity
 Right turn A1 ± A8 Continuity
If continuity is not as specified, replace the switch.
± BODY ELECTRICAL SYSTEMTURN SIGNAL AND HAZARD WARNING SYSTEMBE±21

HAZARD WARNING SWITCH
INSPECTION
INSPECT SWITCH CONTINUITY
 
 Condition
 
 Tester connection to
terminal number
 
 Specified condition
 Switch OFF 7±10 Continuity 
 Switch ON
 
 7±8
4±5±6±9
 
 Continuity
 
 Illumination circuit
 
 2±3
 
 Continuity
If continuity is not as specified, replace the switch.
TURN SIGNAL FLASHER INSPECTION
INSPECT FLASHER OPERATION
(a) Connect the terminal 2 to battery positive (+) terminal and the
terminal 3 to battery negative (±) terminal.
(b) Connect the 2 turn signal light bulbs parallel to each other to
terminals 1 and 3, check that the bulbs flash.
HINT: The turn signal lights should flash between 60 and 120
times per minute. BE±22
± BODY ELECTRICAL SYSTEMTURN SIGNAL AND HAZARD WARNING SYSTEM

TROUBLESHOOTING
The table below will be useful for you in troubleshooting these electrical problems. The most likely causes
of the malfunction are shown in the order of their probability. Inspect each part in the order shown, and
replace the part when it is found to be faulty.
 Trouble Parts name (See page)
 
 
 
 
Fog light does not light with light control SW HEAD
(Headlight is normal).
 
 
 
 
1. HEAD Fuse (BE±5)
2. Fog Light Relay (BE±25)
3. Fog Light Switch (BE±24)
4. Wire Harness
 
 
Fog light does not light with light control SW HEAD
(Headlight does not light). 
 
1. Inspect Headlight system (BE±10)
2. Wire Harness
 Only one light does not light. 1. Bulb
2. Wire Harness
FOG LIGHT AIM ADJUSTMENT
Adjust Screw: Vertical Direction
FOG LIGHT SWITCH INSPECTION
INSPECT SWITCH CONTINUITY
 
 Switch position 
 
Tester connection to
terminal number 
 Specified condition
 OFF ± No continuity
 ON A6±A7 Continuity
If continuity is not as specified, replace the switch. BE±24
± BODY ELECTRICAL SYSTEMFOG LIGHT SYSTEM

TROUBLESHOOTING
The table below will be useful for you in troubleshooting these electrical problems. The most likely causes
of the malfunction are shown in the order of their probability. Inspect each part in the order shown, and
replace the part when it is found to be faulty.
 Trouble Parts name (See page) 
 
 
Only one light does not light up.
 
 
 
1. Bulb
2. Wire Harness
 
 
 
Interior light does not light up (All).
 
 
 
1. DOME Fuse (BE±5)
2. Integration Relay (BE±29)
3. Wire Harness
 
 
 
 
ºIlluminated Entry Systemº does not operate.
 
 
 
 
1. Integration Relay (BE±29)
2. Door Courtesy Switch (BE±28)
3. Door Key Lock and Unlock Switch (BE±158)
4. Door Unlock Detection Switch (BE±145)
5. Wire Harness
 
 
 Front personal light does not light up.
 
 
 
1. Bulb
2. Front Personal Light (BE±27)
3. Wire Harness
 
 Luggage room light does not light up.
 
 1. Bulb
2. Luggage Room Light Switch (BE±28)
PERSONAL LIGHT SWITCH INSPECTION
1. INSPECT INTERIOR LIGHT CONTINUITY
 
 Switch position
 
 Tester connection to
terminal number 
 Specified condition
 
 DOOR 
 1±3 
 Continuity
 OFF ± No continuity
2. INSPECT PERSONAL LIGHT CONTINUITY
 
 Switch position
 
 Tester connection to
terminal number 
 Specified condition
 
OFF 
± 
No continuity 
 *ON
 
 1±2
 
 Continuity
* Set the interior light switch to OFF or DOOR.
If continuity is not as specified, replace the light assembly or
bulb.
± BODY ELECTRICAL SYSTEMINTERIOR LIGHT SYSTEMBE±27

TROUBLESHOOTING
The table below will be useful for you in troubleshooting these electrical problems. The most likely causes
of the malfunction are shown in the order of their probability. Inspect each part in the order shown, and
replace the part when it is found to be faulty.
 
 Trouble
 
 Parts name (See page)
 
 
 
 
 
Back Up Light does not light up
 
 
 
 
 
1. GAUGE Fuse (BE±6)
2. Ignition Switch (BE±8)
3. Back±up Light Switch (M/T) (BE±31)
4. Park/ Neutral Position Switch (A/T) (AT1±Section)
5. Wire Harness
6. Bulb
 Back Up Light remains always on 1. Wire Harness 
 

Only one light does not light up
 
 

1. Wire Harness
2. Bulb
BACK UP LIGHT SWITCH INSPECTION
INSPECT SWITCH CONTINUITY 
 
 
Switch position
 
 
 
Tester connection to
terminal number
 
 
 
Specified condition
 Free 1±2 No continuity
 Push 1±2 Continuity
If continuity is not as specified, replace the switch.
PARK/NEUTRAL POSITION SWITCH
INSPECTION
See AT section
± BODY ELECTRICAL SYSTEMBACK±UP LIGHT SYSTEMBE±31

TROUBLESHOOTING
The table below will be useful for you in troubleshooting these electrical problems. The most likely causes
of the malfunction are shown in the order of their probability. Inspect each part in the order shown, and
replace the part when it is found to be faulty.
 
 Trouble
 
 Parts name (See page)
 
 
 
Stop light does not light up
 
 
 
1. STOP Fuse (BE±6)
2. Stop Light Switch (BE±33)
3. Wire Harness
4. Bulb
 
 
 
Stop light remains always on
 
 
 
1. Stop Light Switch (BE±33)
2. Wire Harness
 
 Only one light does not light up 
 
1. Wire Harness
2. Bulb
STOP LIGHT SWITCH INSPECTION
INSPECT SWITCH CONTINUITY
 
 Switch position
 
 
Tester connection to
terminal number 
 Specified condition
 
 Switch pin free
(Pedal depressed) 
 1±2
 
 Continuity
 
 Switch pin pushed in
(Pedal released) 
 3±4
 
 Continuity
If continuity is not as specified, replace the switch.
± BODY ELECTRICAL SYSTEMSTOP LIGHT SYSTEMBE±33

TROUBLESHOOTING
The table below will be useful for you in troubleshooting these electrical problems. The most likely causes
of the malfunction are shown in the order of their probability. Inspect each part in the order shown, and
replace the part when it is found to be faulty.
METER, GAUGES AND ILLUMINATION
 Trouble Parts name (See page)
 
 
 
Tachometer, Fuel Gauge and Engine Coolant Tempera-
ture Gauge do not operate
 
 
 
1. GAUGE Fuse (BE±6)
2. Meter Circuit Plate (BE±44)
3. Wire Harness
 
 
 
Speedometer does not operate
 
 
 
1. Vehicle Speed Sensor (BE±46)
2. Meter Circuit Plate (BE±44)
3. Wire Harness
 
 
 
 
Tachometer does not operate
 
 
 
 
1. Igniter
2. ECM (EG Section)
3. Meter Circuit Plate (BE±44)
4. Wire Harness
 
 
 
 
Fuel Gauge does not operate or abnormal operation
 
 
 
 
1. Fuel Receiver Gauge (BE±48)
2. Fuel Sender Gauge (BE±49)
3. Meter Circuit Plate (BE±44)
4. Wire Harness
 
 
 
 
Engine Coolant Temperature Gauge does not operate or
abnormal operation
 
 
 
 
1. Engine Coolant Temperature Receiver Gauge (BE±50)
2. Engine Coolant Temperature Sender Gauge (BE±50)
3. Meter Circuit Plate (BE±44)
4. Wire Harness
 
 
 
 
All illumination lights do not light up
 
 
 
 
1. TAIL Fuse (BE±6)
2. Light Control Rheostat (BE±54)
3. Meter Circuit Plate (BE±44)
4. Wire Harness
 
 
Only one illumination light does not light up 
 
1. Bulb
2. Meter Circuit Plate (BE±44)
± BODY ELECTRICAL SYSTEMCOMBINATION METERBE±41

WARNING LIGHTS
 Trouble Parts name (See page)
 
 
 
 
 
Warning lights do not light up
(Except Discharge and Door Open)
 
 
 
 
 
1. Bulb
2. IGN Fuse (BE±6)
3. Ignition Switch (BE±8)
4. Meter Circuit Plate (BE±44)
5. Wire Harness
6. Generator
 
 
 
 
 
 
Brake Warning Light does not light up
 
 
 
 
 
 
1. Bulb
2. Brake Fluid Level Warning Switch (BE±52)
3. Parking Brake Switch (BE±52)
4. Bulb Check Relay
5. Meter Circuit Plate (BE±44)
6. Wire Harness
 
 
 
 
 
Seat Belt Warning Light does not light up
 
 
 
 
 
1. Bulb
2. Seat Belt Buckle Switch (BE±56)
3. Integration Relay (BE±55)
4. Meter Circuit Plate (BE±44)
5. Wire Harness
 
 
 
 
Engine Oil Level Warning Light does not light up
 
 
 
 
1. Bulb
2. Engine Oil Level Switch (BE±51)
3. Meter Circuit Plate (BE±44)
4. Wire Harness
 
 
 
Low Oil Pressure Warning Light does not light up
 
 
 
1. Bulb
2. Low Oil Pressure Warning Switch (BE±51)
3. Meter Circuit Plate (BE±44)
4. Wire Harness
 
 
 
 
 
 
 
Door Open Warning Light does not light up
 
 
 
 
 
 
 
1. Bulb
2. DOME Fuse (BE±5)
3. Door Courtesy Switch (BE±54)
4. Luggage Room Light Switch (BE±28)
5. Integration Relay
6. Meter Circuit Plate (BE±44)
7. Wire Harness
 
 
 
 
Master Warning Light does not light up
 
 
 
 
1. Bulb
2. Telltale Light (BE±48)
3. Meter Circuit Plate (BE±44)
4. Wire Harness
BE±42± BODY ELECTRICAL SYSTEMCOMBINATION METER